Improvement in shoe-nailing machines



P. H."BAnsow. shoe-nailing Machines.

Patenedlaln.12.1875.l

NITED STATES PATENT OFFICE.

PERCIVAL H. BARSTOW, 0F TRENTON, NEW JERSEY.

IMPROVEMENT IN SHOE-NAlLING MACHINES.

Specification forming part of Letters -Patent No. 158,566, dated January 12, 1875; application tiled September 5, 1874.

To all whom it may concern Be it known that I, lnncIvALA H. BAR- sToW, of Trenton, in the county of Mercer and State of New Jersey, have invented an Improvement in Shoe Nailing or Pegging Machines, of which the following is a specication:

My invention relates to the combination of a spring, formed out of Wood having the proper elasticity, with the hammer-spindle of a machin'eintended for drivin g nails or pegs in shoes, and in this only. Its object is to avoid the crystallization due to the metallic springs here-- the other end the cam B2. f (l is the hammerspindle, on which are shoulder, (l1, against which the cam B2 secured anadjustable the under surface of impinges on raising the hammer-spindle C, and a collar, G2, which arrests the spindle C at the proper point in its descent to prevent injury to the shoe. The upper end of the spindle G is received by the socket-band C3, which is properly fitted to the spring Dl. The spring D1 is secured in rccesses D2 D3, and provided with a screw, D4, for the proper adjustment of the spring blow. The bracket D, containing recesses D2 D3, is secured to the main frame by bolts, or it may be cast as part of the frame A.

The operation of this machine is substantially as follows: Motion is imparted to the operating-shaft B by means of the drivingpulley B As this shaft revolves the cam B2, impinging against the under surface of the shoulder Cl, raises the spindle 0,'which, in turn, presses up the spring D1, the reaction of which causes the spindle to descend and dri-ve the nail or peg in the shoe. At cach revolution this operation is repeated.

What is here claimed as new, and desired to be secured by Letters Patent, is

The horizontal Wood spring Dl, supported in recesses upon bracket D, in combination With adjusting set-screw D4 and hammer-spindle C, all substantially as and for the purpose described.

PERCIVAL H. BARSTOVV.

Witnesses:

WM. H. IvENs, L. GHAMBERLAIN. 

